
package com.example.demo.mapper;

import com.example.demo.entity.CourseInfo;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

@Mapper
public interface CourseInfoMapper {

    @Select("select * from tb_course_info where courseId = #{courseId} ")
    CourseInfo selectCourseInfoByCId(long courseId);
}
